Abstract
Diagnosis in psychiatry, as in other fields of medicine is a very important step in the development of research. This article reviews its importance and its progress in the field of psychiatry.

Important yardsticks are: Feighner Criteria, Research Diagnostic Criteria, DSMIII-R and IDC-X.

This article reviews diagnosis and its importance as well as its progress in the field of psychiatry.

Journal Médical Libanais, 39 (1), 25-27.

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